(PHP 4 >= 4.0.6, PHP 5, PHP 7)
openssl_x509_read — Parse an X.509 certificate and return a resource identifier for it
openssl_x509_read() parses the certificate supplied by
x509certdata
and returns a resource identifier for
it.
x509certdata
Returns a resource identifier on success 或者在失败时返回 FALSE
.